Performance of improved bacterial cellulose application in the production of functional paper

被引：0
|
作者：
Basta, A.H. [1 ]
El-Saied, H. [1 ]
机构：
[1] Cellulose and Paper Department, National Research Centre, Dokki-12622, Cairo, Egypt
来源：
Journal of Applied Microbiology | 2009年 / 107卷 / 06期
关键词：
Aim: The purpose of this work was to study the feasibility of producing economic flame retardant bacterial cellulose (BC) and evaluating its behaviour in paper production. Methods and Results: This type of BC was prepared by Gluconacetobacter subsp. xylinus and substituting the glucose in the cultivation medium by glucose phosphate as a carbon source; as well as using corn steep liquor as a nitrogen source. The investigated processing technique did not dispose any toxic chemicals that pollute the surroundings or cause unacceptable effluents; making the process environmentally safe. The fire retardant behaviour of the investigated BC has been studied by non-isothermal thermogravimetric analysis (TGA & DTGA). The activation energy of each degradation stage and the order of degradation were estimated using the Coats-Redfern equation and the least square method. Strength; optical properties; and thermogravimetric analysis of BC-phosphate added paper sheets were also tested. Conclusions: The study confirmed that the use of glucose phosphate along with glucose was significant in the high yield production of phosphate containing bacterial cellulose (PCBC1); more so than the use of glucose phosphate alone (PCBC2). Incorporating 5% of the PCBC with wood pulp during paper sheet formation was found to significantly improve kaolin retention; strength; and fire resistance properties as compared to paper sheets produced from incorporating bacterial cellulose (BC). Significance and Impact of the Study: This modified BC is a valuable product for the preparation of specialized paper; in addition to its function as a fillers aid. © 2009 The Society for Applied Microbiology;
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页码：2098 / 2107
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